I'd punish all of them. You're clearly being an ass, especially in that third game. There's nothing worse than someone calling "/all omfg reprot dis noob", and other such instances of molestation of the English language simply because someone isn't playing well. It's especially a unacceptable when you're actually doing worse than the player in question.

You were banned for 3 days for not being a team player and unnecessarily harassing your allies. Don't try to make excuses like "omg this guy was bad and I'm the one who gets reported for pointing out that he's bad like the douche I am".

Did you even look at the scoreboard? Apparently you don't get matched up with elo trash.